Flavor-deconstructed neutrinos

TL;DR

This paper explores a flavor-deconstructed gauge theory framework to explain the lepton flavor structure, proposing a simple model that naturally accounts for neutrino and charged lepton hierarchies.

Contribution

It introduces a simple flavor-deconstructed model that naturally results in sequential dominance for neutrinos and charged leptons, addressing the flavor puzzle.

Findings

The model achieves sequential dominance for neutrinos and charged leptons.

Flavor deconstruction provides a viable explanation for lepton flavor hierarchy.

Abstract

A tentative approach to explain the flavor puzzle consists of embedding the Standard Model in a larger gauge symmetry that contains a separate gauge group for each fermion family. In such gauge non-universal (or flavor-deconstructed) theories, neutrinos pose some challenges. I will discuss existing ideas in the literature and present a simple model in which flavor deconstruction naturally leads to sequential dominance for both neutrinos and charged leptons, thus providing a viable explanation for the flavor structure of the lepton sector.